JPH05278547A - Pad of air bag unit - Google Patents
Pad of air bag unitInfo
- Publication number
- JPH05278547A JPH05278547A JP4077642A JP7764292A JPH05278547A JP H05278547 A JPH05278547 A JP H05278547A JP 4077642 A JP4077642 A JP 4077642A JP 7764292 A JP7764292 A JP 7764292A JP H05278547 A JPH05278547 A JP H05278547A
- Authority
- JP
- Japan
- Prior art keywords
- pad
- core layer
- air bag
- urethane
- thermoplastic elastomer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/40—Layered products comprising a layer of synthetic resin comprising polyurethanes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
- B32B27/22—Layered products comprising a layer of synthetic resin characterised by the use of special additives using plasticisers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60R—VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR
- B60R21/00—Arrangements or fittings on vehicles for protecting or preventing injuries to occupants or pedestrians in case of accidents or other traffic risks
- B60R21/02—Occupant safety arrangements or fittings, e.g. crash pads
- B60R21/16—Inflatable occupant restraints or confinements designed to inflate upon impact or impending impact, e.g. air bags
- B60R21/20—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components
- B60R21/215—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member
- B60R21/2165—Arrangements for storing inflatable members in their non-use or deflated condition; Arrangement or mounting of air bag modules or components characterised by the covers for the inflatable member characterised by a tear line for defining a deployment opening
- B60R21/21656—Steering wheel covers or similar cup-shaped covers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/546—Flexural strength; Flexion stiffness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2605/00—Vehicles
- B32B2605/08—Cars
Abstract
Description
【０００１】[0001]
【産業上の利用分野】この発明は、自動車のステアリン
グホイールや助手席前方のインストルメントパネル等に
配置されるエアバッグ装置のパッドに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pad of an air bag device arranged on a steering wheel of a vehicle, an instrument panel in front of a passenger seat, or the like.
【０００２】[0002]
【従来の技術とその課題】従来、エアバッグ装置のパッ
ドでは、表皮層を軟質ウレタン製として、コア層を、コ
ア層自体とパッドの製造の容易さから、硬質合成樹脂か
ら形成するものが知られている（特開昭６３−１９９１
４９号公報参照）。2. Description of the Related Art Conventionally, in air bag device pads, it has been known that the skin layer is made of soft urethane and the core layer is made of a hard synthetic resin because of the ease of manufacturing the core layer itself and the pad. (Japanese Patent Laid-Open No. 63-19991)
49).
【０００３】しかし、エアバッグ装置のパッドでは、軟
質ウレタン製の表皮層内に埋設するコア層に、硬質合成
樹脂材料を使用した場合、低温衝撃性や耐熱老化性に劣
るものが多く、実際の使用に適するものが少なかった。However, in a pad of an air bag device, when a hard synthetic resin material is used for a core layer embedded in a skin layer made of a soft urethane, there are many cases in which low temperature impact resistance and heat aging resistance are inferior. There were few suitable for use.
【０００４】この発明は、上述の課題を解決するもの
で、低温衝撃性と耐熱老化性とに優れ、また、容易に製
造することができるエアバッグ装置のパッドを提供する
ことを目的とする。The present invention is intended to solve the above-mentioned problems, and an object thereof is to provide a pad for an airbag device which is excellent in low temperature impact resistance and heat aging resistance and which can be easily manufactured.
【０００５】[0005]
【課題を解決するための手段】この発明に係るパッド
は、軟質ウレタン製の表皮層と、硬質合成樹脂製のコア
層と、から構成され、エアバッグの拡開に伴なう破断時
に、前記コア層のヒンジ部を中心に展開するエアバッグ
装置のパッドであって、前記コア層が、曲げ弾性率を１
０００〜２５００Kgf/cm2 の範囲とするウレタン系熱可
塑性エラストマーから形成されていることを特徴とす
る。A pad according to the present invention comprises a skin layer made of a soft urethane and a core layer made of a hard synthetic resin, and at the time of breakage accompanying expansion of an airbag, A pad for an air bag device that deploys around a hinge portion of a core layer, wherein the core layer has a bending elastic modulus of 1 or less.
It is characterized by being formed from a urethane-based thermoplastic elastomer in the range of 000 to 2500 Kgf / cm 2 .
【０００６】[0006]
【実施例】以下、この発明の一実施例を図面に基づいて
説明する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.
【０００７】実施例のエアバッグ装置１０は、図１に示
すように、ステアリングホイールＷのボス部Ｂの上方に
配置され、折り畳まれて収納されて所定時膨らむエアバ
ッグ１１と、所定時にエアバッグ１１にガスを供給する
インフレーター１２と、エアバッグ１１の下方を覆うハ
ウジング１３と、エアバッグ１１の上方を覆うパッド１
４と、から構成されている。ハウジング１３は、エアバ
ッグ１１・インフレーター１２・及びパッド１４を保持
する。そして、ハウジング１３が、ステアリングホイー
ルＷのボス部Ｂに固定されることとなる。As shown in FIG. 1, the airbag apparatus 10 of the embodiment is arranged above the boss B of the steering wheel W, and is folded and stored to inflate at a predetermined time, and an airbag 11 at a predetermined time. Inflator 12 for supplying gas to 11, housing 13 for covering lower part of airbag 11, and pad 1 for covering upper part of airbag 11
4 and. The housing 13 holds the airbag 11, the inflator 12, and the pad 14. Then, the housing 13 is fixed to the boss portion B of the steering wheel W.
【０００８】実施例のパッド１４は、図１・２に示すよ
うに、上壁１５と、上壁１５周縁から下方へ延びる側壁
１６と、を備えた略四角箱形状とし、軟質ウレタン製の
表皮層１７と、ウレタン系熱可塑性エラストマーからな
るコア層１９と、から構成されている。As shown in FIGS. 1 and 2, the pad 14 of the embodiment has a substantially rectangular box shape having an upper wall 15 and a side wall 16 extending downward from the peripheral edge of the upper wall 15, and is made of a soft urethane skin. It is composed of a layer 17 and a core layer 19 made of a urethane-based thermoplastic elastomer.
【０００９】パッド１４の上壁１５の表皮層１７には、
インフレーター１２からのガスが供給された際に、破断
し易いように、上方から見て、略Ｈ字形に薄肉となる破
断予定部１８が形成されている。On the skin layer 17 of the upper wall 15 of the pad 14,
When the gas from the inflator 12 is supplied, a to-be-ruptured portion 18 having a substantially H-shape when viewed from above and having a thin wall is formed so as to easily break.
【００１０】コア層１９は、図２に示すように、パッド
１４の側壁１６内に埋設される略四角筒状の基部２０
と、基部２０の上部の対向する二つの縁から延びてパッ
ド１４の上壁１５内に埋設される二つの展開部２１と、
から構成されている。これらの展開部２１には、表皮層
１７との剥離防止用の多数の孔（図符号省略）が形成さ
れている。また、展開部２１・２１相互は、表皮層１７
の破断予定部１８を横断しないように、構成されてい
る。The core layer 19, as shown in FIG. 2, is embedded in the side wall 16 of the pad 14 and has a substantially square tubular base portion 20.
And two deploying portions 21 extending from the two opposite edges of the upper portion of the base portion 20 and embedded in the upper wall 15 of the pad 14,
It consists of A large number of holes (not shown in the figure) for preventing separation from the skin layer 17 are formed in these developed portions 21. In addition, the expanding portions 21 and 21 are connected to each other by the skin layer 17
Is designed so as not to traverse the planned breaking portion 18.
【００１１】なお、展開部２１・２１は、相互に完全に
分離される場合の他、破断予定部１８で容易に分離可能
であれば、例えば、ミシン目、スリット等を設けて、相
互に連結するように構成しても良い。In addition to the case where the expanding portions 21 and 21 are completely separated from each other, if they can be easily separated from each other by the breakable portion 18, for example, perforations, slits, etc. are provided to connect them to each other. It may be configured to do so.
【００１２】そして、展開部２１・２１の基部２０側に
は、薄肉のヒンジ部２２がそれぞれ形成されている。こ
れらのヒンジ部２２は、エアバッグ１１の拡開に伴なう
パッド１４の破断予定部１８の破断時において、パッド
１４の上壁１５が観音扉が開くように展開する際の、そ
の展開の中心となる部位である。A thin hinge portion 22 is formed on the base portion 20 side of the expanding portions 21 and 21, respectively. These hinge portions 22 are used for deploying the upper wall 15 of the pad 14 when the airbag 14 is deployed so that the upper wall 15 of the pad 14 is deployed so as to open the gannon door at the time of the fracture of the planned fracture portion 18 of the pad 14. This is the central part.
【００１３】また、基部２０の下面には、パッド１４を
ハウジング１３にステアリングホイールＷに取り付ける
ための複数のボルト２３が埋設されている。A plurality of bolts 23 for attaching the pad 14 to the steering wheel W on the housing 13 are embedded in the lower surface of the base 20.
【００１４】コア層１９のウレタン系熱可塑性エラスト
マーは、使用する長鎖ポリオールに対応して分類される
カプロラクタン系、アジペート系、ポリカーボネイト
系、ポリエーテル系、のいずれを使用しても良い。な
お、望ましくは、機械的強度が高く、耐熱老化性及び耐
寒性のバランスのとれているカプロラクタン系が良い。The urethane type thermoplastic elastomer of the core layer 19 may be any of caprolactane type, adipate type, polycarbonate type and polyether type which are classified according to the long chain polyol used. It is desirable to use a caprolactane-based material that has high mechanical strength and is well balanced in heat aging resistance and cold resistance.
【００１５】さらに、使用するウレタン系熱可塑性エラ
ストマーは、ガラス繊維・アラミド繊維等の補強性充填
材を含まないものを使用する。Further, the urethane-based thermoplastic elastomer used does not contain a reinforcing filler such as glass fiber or aramid fiber.
【００１６】そして、その特性として、曲げ弾性率を１
０００〜２５００Kgf/cm2 の範囲とするものが良い。１
０００Kgf/cm2 未満では、コア層１９に形状保持性を付
与し難くなり、２５００Kgf/cm2 を超えれば、軟質の表
皮層１７を備えていても、パッド１４の手触り感におい
て、ソフト感を得難くなり、かつ、パッド１４の展開時
に、ヒンジ部２２に不要なヒビ割れが生じ易くなるから
である。なお、望ましい範囲は、１５００〜２０００Kg
f/cm2 である。As its characteristic, the bending elastic modulus is 1
It is preferably in the range of 000 to 2500 Kgf / cm 2 . 1
If it is less than 000 Kgf / cm 2, it is difficult to give shape retention to the core layer 19, and if it is more than 2500 Kgf / cm 2 , even if the soft skin layer 17 is provided, the pad 14 has a soft feel. This is because it becomes difficult and unnecessary cracks easily occur in the hinge portion 22 when the pad 14 is developed. The desirable range is 1500-2000Kg
f / cm 2 .
【００１７】具体的なウレタン系熱可塑性エラストマー
としては、「パンデックス T-5070・T-5965D 」（大日
本インキ（株）製）、「エラストラン E-574FNAT 」
（日本エラストラン（株）製）等を使用可能である。な
お、これらの材料は、一般に、曲げ弾性率が３０００Kg
f/cm2 を超えるため、これらの材料に軟化剤を添加し、
曲げ弾性率を所定値に調整したものを使用する。Specific examples of the urethane type thermoplastic elastomer include "Pandex T-5070 / T-5965D" (manufactured by Dainippon Ink and Chemicals, Inc.) and "Elastolan E-574FNAT".
(Manufactured by Nippon Elastollan Co., Ltd.) and the like can be used. Note that these materials generally have a flexural modulus of 3000 Kg.
Since it exceeds f / cm 2 , softeners are added to these materials,
Use the one whose flexural modulus is adjusted to a predetermined value.
【００１８】この実施例のパッド１４の製造では、ボル
ト２３を埋設させて射出成形により、コア層１９を成形
し、そのコア層１９をインサートとして反応射出成形
（ＲＩＭ成形）により表皮層１７を成形すれば良い。In the manufacture of the pad 14 of this embodiment, the core layer 19 is molded by injection molding with the bolts 23 buried therein, and the skin layer 17 is molded by reaction injection molding (RIM molding) using the core layer 19 as an insert. Just do it.
【００１９】なお、表皮層１７の成形時に、コア層１９
が表皮層１７と同質材であるため、コア層１９表面に接
着剤を塗布しなくとも、成形後の両層１７・１９の接着
性は良好となる。When the skin layer 17 is formed, the core layer 19
Since it is the same material as the skin layer 17, the adhesiveness of both layers 17 and 19 after molding is good even if an adhesive is not applied to the surface of the core layer 19.
【００２０】つぎに、実施例のエアバッグ装置Ｍのパッ
ド１４と、他の材料から形成した実施例と同形のパッド
とで、所定温度及び一定時間加熱後のインフレーション
試験を行ない、その評価結果を、表１に示す。Next, an inflation test after heating at a predetermined temperature and for a certain period of time was carried out using the pad 14 of the airbag apparatus M of the embodiment and a pad having the same shape as that of the embodiment formed of another material. , Shown in Table 1.
【００２１】[0021]
【表１】 [Table 1]
【００２２】なお、全てのパッドの表皮層１７は、ＲＩ
Ｍ成形により成形した軟質ウレタン製であり、その硬度
（JIS Ａ）を６０〜９０の範囲としているものである。The skin layers 17 of all the pads are RI
It is made of soft urethane molded by M molding and has a hardness (JIS A) in the range of 60 to 90.
【００２３】また、実施例のコア層１９は、ウレタン系
熱可塑性エラストマーとして、大日本インキ株式会社の
商品名「パンデックス T-5070」に軟化剤を添加したも
のである。The core layer 19 of the embodiment is a urethane type thermoplastic elastomer in which a softening agent is added to the trade name "Pandex T-5070" manufactured by Dainippon Ink and Chemicals, Inc.
【００２４】さらに、比較例１のコア層は、ポリエステ
ル系熱可塑性エラストマーであり、東レ・デュポン株式
会社の商品名「ハイトレル 5557」を使用した。Further, the core layer of Comparative Example 1 was a thermoplastic polyester elastomer, and the trade name "Hytrel 5557" manufactured by Toray DuPont Co., Ltd. was used.
【００２５】さらに、比較例２のコア層は、ポリエステ
ル系熱可塑性エラストマーであり、東洋紡績株式会社の
商品名「ヘルプレン S2001」を使用した。Further, the core layer of Comparative Example 2 was a thermoplastic polyester-based elastomer, and the trade name "Helplen S2001" manufactured by Toyobo Co., Ltd. was used.
【００２６】さらに、比較例３のコア層は、ガラス繊維
入り（50％）ウレタン系熱可塑性エラストマーであり、
アイ・シー・アイ・ジャパン株式会社の商品名「バート
ン TF-700-10」を使用した。Further, the core layer of Comparative Example 3 is a glass fiber-containing (50%) urethane thermoplastic elastomer,
The product name "Burton TF-700-10" of IC Japan Co., Ltd. was used.
【００２７】さらに、比較例４のコア層は、６ナイロン
系熱可塑性エラストマーであり、三菱油化株式会社の商
品名「レマロイ BX538」を使用した。Further, the core layer of Comparative Example 4 was a 6-nylon thermoplastic elastomer, and the product name "Remalloy BX538" manufactured by Mitsubishi Petrochemical Co., Ltd. was used.
【００２８】また、各使用材料の物性データは、各メー
カの発行の物性データ表から拾った乃至換算したもので
ある。さらに、実施例のコア層１９の使用材料について
は、それらに準じて測定したデータである。各物性デー
タの試験法は、それぞれ、引張強度：ＡＳＴＭ Ｄ６３
８、曲げ弾性率：ＡＳＴＭ Ｄ７９０、アイゾット衝撃
値：ＡＳＴＭ Ｄ２５６、である。Further, the physical property data of each used material is obtained or converted from the physical property data table issued by each manufacturer. Furthermore, the materials used for the core layer 19 of the examples are data measured according to them. The test method for each physical property data is as follows: Tensile strength: ASTM D63
8, flexural modulus: ASTM D790, Izod impact value: ASTM D256.
【００２９】表１から解るように、実施例のパッド１４
では、８５℃・常温・−３５℃・耐熱老化後のいずれの
時も、展開性能が良好である。これに対し、比較例１・
２のパッドは、耐熱老化後のインフレーション時に問題
が生じ、比較例３・４のパッドでは、−３５℃のインフ
レーション時に、問題があることが解る。As can be seen from Table 1, the pad 14 of the embodiment
Then, the development performance is good at 85 ° C., room temperature, −35 ° C., and at any time after heat aging. On the other hand, Comparative Example 1
It can be seen that the pad of No. 2 has a problem during inflation after heat aging, and the pads of Comparative Examples 3 and 4 have a problem during inflation at -35 ° C.
【００３０】[0030]
【発明の作用・効果】この発明に係るエアバッグ装置の
パッドでは、上述したように、コア層を、曲げ弾性率を
１０００〜２５００Kgf/cm2 の範囲のウレタン系熱可塑
性エラストマーから形成したことから、既述したよう
に、低温衝撃性と耐熱老化性とに優れている。また、コ
ア層が表皮層と同質材から形成されているため、表皮層
の成形時にコア層に別途接着剤を塗布しなくとも、成形
後に両層を容易に強固に接合させることができるため、
接着剤塗布作業を不要にでき、容易に製造することがで
きる。As described above, in the pad of the airbag device according to the present invention, the core layer is made of the urethane-based thermoplastic elastomer having a flexural modulus of 1000 to 2500 Kgf / cm 2. As described above, it is excellent in low temperature impact resistance and heat aging resistance. Further, since the core layer is formed of the same material as the skin layer, it is possible to easily and firmly bond both layers after molding without separately applying an adhesive to the core layer at the time of molding the skin layer.
The adhesive application work can be eliminated and the product can be easily manufactured.
【図１】この発明に使用するパッドの使用態様を示す断
面図である。FIG. 1 is a cross-sectional view showing a usage mode of a pad used in the present invention.
【図２】同実施例のパッドの斜視図である。FIG. 2 is a perspective view of a pad of the same embodiment.
【図３】同実施例のコア層を示す斜視図である。FIG. 3 is a perspective view showing a core layer of the same example.
１０…エアバッグ装置、 １４…パッド、 １７…表皮層、 １９…コア層、 ２２…ヒンジ部。 10 ... Airbag device, 14 ... Pad, 17 ... Skin layer, 19 ... Core layer, 22 ... Hinge part.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小川 裕之 愛知県西春日井郡春日町大字落合字長畑１ 番地 豊田合成株式会社内 (72)発明者 池田 貴信 愛知県西春日井郡春日町大字落合字長畑１ 番地 豊田合成株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Hiroyuki Ogawa No. 1 Nagahata, Ochiai, Kasuga-cho, Nishikasugai-gun, Aichi Toyoda Gosei Co., Ltd. Toyoda Gosei Co., Ltd.
Claims (1)
脂製のコア層と、から構成され、エアバッグの拡開に伴
なう破断時に、前記コア層のヒンジ部を中心に展開する
エアバッグ装置のパッドであって、 前記コア層が、曲げ弾性率を１０００〜２５００Kgf/cm
2 の範囲とするウレタン系熱可塑性エラストマーから形
成されていることを特徴とするエアバッグ装置のパッ
ド。1. An air which comprises a skin layer made of a soft urethane and a core layer made of a hard synthetic resin, and which expands around a hinge portion of the core layer at the time of breakage accompanying expansion of the airbag. A pad of a bag device, wherein the core layer has a flexural modulus of 1000 to 2500 Kgf / cm.
A pad for an airbag device, which is formed from a urethane-based thermoplastic elastomer having a range of 2 .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4077642A JPH05278547A (en) | 1992-03-31 | 1992-03-31 | Pad of air bag unit |
| DE4309374A DE4309374A1 (en) | 1992-03-31 | 1993-03-23 | Cover for airbag unit - comprises urethane surface layer and core of thermoplastic urethane] elastomer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4077642A JPH05278547A (en) | 1992-03-31 | 1992-03-31 | Pad of air bag unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05278547A true JPH05278547A (en) | 1993-10-26 |
Family
ID=13639550
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4077642A Pending JPH05278547A (en) | 1992-03-31 | 1992-03-31 | Pad of air bag unit |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JPH05278547A (en) |
| DE (1) | DE4309374A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762362A (en) * | 1995-04-24 | 1998-06-09 | Kansei Corporation | Automotive air bag cover and method of molding same |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19739107C2 (en) * | 1997-07-31 | 2001-02-01 | Brocke Kg I B S | Pillar covering for pillars of motor vehicles with new materials |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52116537A (en) * | 1976-03-26 | 1977-09-30 | Toyota Motor Corp | Expansion type passenger restricting device for automobile or the like |
| JPS63199149A (en) * | 1987-02-11 | 1988-08-17 | Toyoda Gosei Co Ltd | Pad of air bag device |
| JPH05104547A (en) * | 1991-07-23 | 1993-04-27 | Nippon Plast Co Ltd | Cover for receiving air bag |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3942694C3 (en) * | 1988-12-26 | 2003-05-15 | Takata Corp | Cover for a folded gas bag of an impact protection device in motor vehicles |
| JPH0364156U (en) * | 1989-10-30 | 1991-06-21 |
-
1992
- 1992-03-31 JP JP4077642A patent/JPH05278547A/en active Pending
-
1993
- 1993-03-23 DE DE4309374A patent/DE4309374A1/en not_active Ceased
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS52116537A (en) * | 1976-03-26 | 1977-09-30 | Toyota Motor Corp | Expansion type passenger restricting device for automobile or the like |
| JPS63199149A (en) * | 1987-02-11 | 1988-08-17 | Toyoda Gosei Co Ltd | Pad of air bag device |
| JPH05104547A (en) * | 1991-07-23 | 1993-04-27 | Nippon Plast Co Ltd | Cover for receiving air bag |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5762362A (en) * | 1995-04-24 | 1998-06-09 | Kansei Corporation | Automotive air bag cover and method of molding same |
Also Published As
| Publication number | Publication date |
|---|---|
| DE4309374A1 (en) | 1993-10-07 |
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